APA-čujuhus (7. p.)
Robert W. Boyd, S. G. L. Self-focusing: Past and Present: Fundamentals and Prospects. Springer.
Chicago-čujuhus (17. p.)
Robert W. Boyd, Svetlana G. Lukishova. Self-focusing: Past and Present: Fundamentals and Prospects. Nueva York, EUA: Springer.
MLA-čujuhus (9. p.)
Robert W. Boyd, Svetlana G. Lukishova. Self-focusing: Past and Present: Fundamentals and Prospects. Springer.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.